<?php

namespace App\Endpoint\Api\Http\Controllers\Dealer;

use App\Endpoint\Api\Http\Controllers\Controller;
use App\Models\DealerProduct;
use App\Services\Dealer\OrderService;
use Illuminate\Http\Request;

class ShoppingCartItemController extends Controller
{
    /**
     * 购物车商品列表
     *
     * @param \Illuminate\Http\Request $request
     * @return \Illuminate\Http\JsonResponse
     */
    public function index(Request $request, OrderService $orderService)
    {
        $user = $request->user();
        $items = $user->dealerShoppingCartItems()->latest('id')->get();
        $items->load('product');
        $totalQty = $items->sum('quantity');
        $data = [];
        foreach ($items as $item) {
            $data[] = [
                'id'=>$item->id,
                'name' =>$item->name,
                'cover'=>$item->cover,
                'sell_price'=>$item->sell_price,
                'dealer_price' =>$orderService->getSalePrice($user, $item->product, $totalQty),
                'quantity'=>$item->quantity,
            ];
        }

        return response()->json(['data'=>$data]);
    }

    /**
     * 加入购物车
     */
    public function store(Request $request)
    {
        $input = $request->validate([
            'product_id' => ['bail', 'required', 'int'],
            'quantity' => ['bail', 'required', 'int', 'min:1'],
        ]);

        $product = DealerProduct::online()->findOrFail($input['product_id']);

        $shoppingCartItem = $request->user()->dealerShoppingCartItems()->firstOrCreate([
            'product_id' => $product->id,
        ], [
            'name' => $product->name,
            'cover' => $product->cover,
            'sell_price' => $product->price,
            'quantity' => $input['quantity'],
        ]);
        if (!$shoppingCartItem->wasRecentlyCreated) {
            $shoppingCartItem->increment('quantity', $input['quantity']);
        }

        return response()->noContent();
    }

    /**
     * 购物车变动
     */
    public function update($id, Request $request)
    {
        $input = $request->validate([
            'quantity' => ['bail', 'required', 'int', 'min:1'],
        ]);

        $shoppingCartItem = $request->user()->dealerShoppingCartItems()->findOrFail($id);

        $product = DealerProduct::online()->findOrFail($shoppingCartItem->product_id);

        $shoppingCartItem->update(array_merge($input, [
            'name' => $product->name,
            'cover' => $product->cover,
            'sell_price' => $product->price,
        ]));

        return response()->noContent();
    }

    /**
     * 移出购物车
     */
    public function delete(Request $request)
    {
        $input = $request->validate([
            'ids' => ['bail', 'required', 'array'],
        ]);

        $request->user()->dealerShoppingCartItems()->whereIn('id', $input['ids'])->delete();

        return response()->noContent();
    }
}